Kromschroder Isolated electrode FZE800 74434616

The Kromschroder FZE800 isolated electrode (SKU 74434616) is a flame-sensing component for industrial gas burners, combining ignition and ionization functions in one rod. It has an electrode length of 800 mm and is made from a special heat-resistant alloy, Kanthal A1. The electrode connects via a 4 mm plug and is designed to withstand high temperatures. It operates by conducting a small rectified current through the flame to prove flame presence, and is resistant to soot buildup.

When selecting a replacement electrode of this type, verify that the electrode length, bend, insulator diameter, and mounting flange style match the original burner configuration. The connection type (e.g., 4 mm plug) must be compatible with the ignition cable. Measure the probe reach and gap according to the burner manufacturer's specifications before ordering.

Common failure modes include a worn or eroded tip, cracked ceramic insulation, soot buildup, or a shifted gap. These issues can cause ignition delays, false flame signals, or nuisance lockouts. Check the electrode for visible damage, clean soot deposits, and ensure the gap is set correctly.